(CNN) - A Florida man accused of killing a teenager in 2012 following a dispute over loud music testified during his trial Tuesday that he fired his pistol only after a passenger in an SUV repeatedly threatened him and that the passenger had what appeared to be a 12- or 20-gauge shotgun.
"I thought I was going to be killed," Michael Dunn testified.
Dunn, 47, is charged with first-degree murder in the fatal November 2012 shooting of 17-year-old Jordan Davis in a gas station parking lot in Jacksonville, Florida. The teen and his friends were sitting in an SUV next to Dunn when an argument quickly led to Dunn pulling his gun and shooting nine times into the vehicle, killing Davis.
Police and prosecutors have said that the teens were unarmed. Dunn acknowledges killing Davis, but told police he acted in self-defense after seeing what he believed to be the barrel of a shotgun or a stick in the teens' red Dodge Durango.
Dunn testified that, after parking in the lot so his fiancee could buy wine and chips at a convenience store, he asked the passengers in a nearby SUV to turn down what called "ridiculously loud music" with a thumping bass.
The music stopped at first, and Dunn thanked them, he testified. But the music resumed. According to Dunn, an SUV passenger said, "I should kill that motherf*****," and repeated itÂ louder, "I should f****** kill that motherf******."